-* inset-modify
- This function now also applies to quote insets. It takes a three-character
- string as an argument, referring (1.) to the style (e = ``english'',
- s = ''swedish'', g = ,,german``, p = ,,polish'', f = <<french>>, a = >>danish<<),
- (2.) to the side (l = left, r = right) and (3.) to the quotation level
- (s = single, d = double). So "eld" means "English left double quotation mark".
- A dot in the string means: take the current value. So "inset-modify changetype e.."
- will only change the style to English, while letting side and level as is,
- "inset-modify changetype f.s" will change the style to French and the level to
- single, leaving the side value.